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Suppression of structural degradation of LiNi0.9Co0.1O2 cathode at 90 degrees C by AlPO4-nanoparticle coating
- Issue Date
- Feb-2007
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- AlPO4-nanoparticle; coating; LiNi0.9Co0.1O2
- Citation
- CURRENT APPLIED PHYSICS, v.7, no.2, pp 172 - 175
- Pages
- 4
- Journal Title
- CURRENT APPLIED PHYSICS
- Volume
- 7
- Number
- 2
- Start Page
- 172
- End Page
- 175
- ISSN
- 1567-1739
1878-1675
- Abstract
- This study examined the electrochemical and structural stability of similar to 1.5 wt.% AlPO4-coated LiNi0.9Co0.1O2. The AlPO4-coated LiNi0.9Co0.1O2 retained similar to 60% of the original capacity after 50 cycles, compared with the similar to 30% capacity retention of the bare LiNi0.9Co0.1O2. The discharge profiles and cyclic voltammograms from 4.5 V at 90 degrees C for 4 h showed enhanced structural stability. Scanning electron microscopy and X-ray diffraction revealed that the AlPO4-coated LiNi0.9Co0.1O2 had less degradation than the bare LiNi0.9Co0.1O2. (c) 2006 Elsevier B.V. All rights reserved.
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